80637460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{487}}^2$

素因数の和:1000

約数の個数: 36

約数和(自身を含む): 179668692

約数和(自身を除く): 99031232

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 487, 974, 1948, 2435, 4870, 8279, 9740, 16558, 33116, 41395, 82790, 165580, 237169, 474338, 948676, 1185845, 2371690, 4031873, 4743380, 8063746, 16127492, 20159365, 40318730, 80637460]

約数ペア:

[(1, 80637460), (2, 40318730), (4, 20159365), (5, 16127492), (10, 8063746), (17, 4743380), (20, 4031873), (34, 2371690), (68, 1185845), (85, 948676), (170, 474338), (340, 237169), (487, 165580), (974, 82790), (1948, 41395), (2435, 33116), (4870, 16558), (8279, 9740)]